1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/startup/tests/browser/browser_bug537449.js b/toolkit/components/startup/tests/browser/browser_bug537449.js
index 1b54117a7d..10e54ea6d2 100644
--- a/toolkit/components/startup/tests/browser/browser_bug537449.js
+++ b/toolkit/components/startup/tests/browser/browser_bug537449.js
@@ -44,7 +44,7 @@ function test() {
           win2.close();
 
           // Leave the page the second time.
-          waitForOnBeforeUnloadDialog(browser, (btnLeave, btnStay) => {
+          waitForOnBeforeUnloadDialog(browser, btnLeave => {
             btnLeave.click();
           });